Record envelope, standing records and threshold days for Rupert 3 WSW (USC00107968), Idaho, United States, with 117 years of record.
Key Facts for Rupert 3 WSW
Rupert 3 WSW (USC00107968) is a weather station in Idaho, United States at 42.60 latitude and -113.72 longitude, 1,266 m (4,152 ft) above sea level.
The station reports from 1906 to 2022, 117 years of record.
1,464 records set at Rupert 3 WSW still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Rupert 3 WSW set a daily record precipitation of 12.3 mm (0.5 in) on 19 January 2026.
About the Station
Location: Idaho, United States, 42.60 latitude, -113.72 longitude.
Elevation: 1,266 m (4,152 ft).
Period of record: 1906 to 2022, 117 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Rupert 3 WSW. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Rupert 3 WSW, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
16.1 C (61.0 F)
-36.7 C (-34.1 F)
n/a
n/a
Feb
21.1 C (70.0 F)
-35.0 C (-31.0 F)
n/a
n/a
Mar
26.1 C (79.0 F)
-22.2 C (-8.0 F)
n/a
n/a
Apr
31.7 C (89.1 F)
-15.0 C (5.0 F)
n/a
n/a
May
37.2 C (99.0 F)
-6.7 C (19.9 F)
n/a
n/a
Jun
39.4 C (102.9 F)
-2.2 C (28.0 F)
n/a
n/a
Jul
40.6 C (105.1 F)
1.1 C (34.0 F)
n/a
n/a
Aug
40.0 C (104.0 F)
-4.4 C (24.1 F)
n/a
n/a
Sep
37.8 C (100.0 F)
-8.3 C (17.1 F)
n/a
n/a
Oct
32.8 C (91.0 F)
-11.7 C (10.9 F)
n/a
n/a
Nov
27.8 C (82.0 F)
-23.9 C (-11.0 F)
n/a
n/a
Dec
21.1 C (70.0 F)
-32.8 C (-27.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Rupert 3 WSW still stand. 1917 holds the most, with 39.
Standing records at Rupert 3 WSW by the year they were set
Year set
Standing records
1906
10
1907
21
1908
32
1909
21
1910
18
1911
13
1912
17
1913
16
1914
14
1915
20
1916
23
1917
39
1918
29
1919
30
1920
14
1921
17
1922
17
1923
9
1924
21
1925
10
1926
22
1927
15
1928
9
1929
9
1930
21
1931
24
1932
24
1933
26
1934
33
1935
20
1936
29
1937
18
1938
16
1939
20
1940
18
1941
8
1942
12
1943
8
1944
12
1945
15
1946
10
1947
13
1948
10
1949
26
1950
21
1951
11
1952
22
1953
32
1954
27
1955
30
1956
16
1957
7
1958
19
1959
15
1960
18
1961
17
1962
10
1978
14
1979
9
1980
12
1981
14
1982
14
1983
16
1984
13
1985
37
1986
18
1987
15
1988
19
1989
19
1990
23
1991
15
1992
30
1993
28
1994
9
1995
23
1996
22
1997
14
1998
7
1999
5
2000
11
2002
3
2021
8
2022
12
All-Time Record Progression
2 new records
2 all-time records were set at Rupert 3 WSW between 23 January 1962 and 23 December 1990. Each dot is a new record.
When Rupert 3 WSW set new all-time records
Date
Kind
Detail
1962-01-23
Record low maximum temperature
Record low maximum temperature -20.6 C (-5.1 F)
1990-12-23
Record low maximum temperature
Record low maximum temperature -22.8 C (-9.0 F)
Wettest Day of Each Month
Mar: 64.8 mm (2.6 in)
The wettest day on record for each calendar month at Rupert 3 WSW. The most was 64.8 mm (2.6 in) on 7 March 1907.
Record daily precipitation for each month at Rupert 3 WSW
Month
Record daily precipitation (mm)
Date
Jan
31.0 mm (1.2 in)
6 January 1909
Feb
19.8 mm (0.8 in)
2 February 1907
Mar
64.8 mm (2.6 in)
7 March 1907
Apr
23.4 mm (0.9 in)
10 April 1914
May
39.1 mm (1.5 in)
19 May 1916
Jun
46.5 mm (1.8 in)
8 June 1944
Jul
26.4 mm (1.0 in)
25 July 1913
Aug
35.8 mm (1.4 in)
20 August 1923
Sep
33.5 mm (1.3 in)
26 September 1915
Oct
26.4 mm (1.0 in)
4 October 1912
Nov
39.6 mm (1.6 in)
20 November 1909
Dec
30.2 mm (1.2 in)
26 December 1907
Period of Record Coverage
1906 to 2022
Complete yearUnder 90 percent of days
84 years of record at Rupert 3 WSW, 1906 to 2022. 43 years have data for under 90 percent of days and are left out of rankings: 1906, 1917, 1918, 1919, 1920, 1921, 1922, 1923 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 61 complete years at Rupert 3 WSW, 1907 to 1997. Blue stripes are years cooler than the station's own mean of 8.6 C (47.6 F); red stripes are warmer. The coolest year was 1985, at 5.9 C (42.5 F), and the warmest was 1934, at 11.5 C (52.7 F). The strongest colour marks a difference of 2.9 C (5.2 F).
Annual mean temperature at Rupert 3 WSW as warming stripes, 1907 to 1997
Year
Annual mean temperature
Difference from the station mean
1907
8.9 C
+0.29 C
1909
8.9 C
+0.24 C
1910
9.1 C
+0.43 C
1911
7.2 C
-1.46 C
1912
7.4 C
-1.27 C
1913
7.7 C
-0.94 C
1914
8.9 C
+0.23 C
1915
9.0 C
+0.37 C
1916
7.8 C
-0.83 C
1918
9.2 C
+0.56 C
1919
8.9 C
+0.27 C
1920
8.6 C
-0.03 C
1921
9.4 C
+0.71 C
1922
7.8 C
-0.87 C
1926
9.7 C
+1.01 C
1927
8.4 C
-0.25 C
1928
8.3 C
-0.32 C
1929
7.4 C
-1.24 C
1930
8.1 C
-0.57 C
1931
8.9 C
+0.23 C
1932
7.2 C
-1.46 C
1933
8.1 C
-0.53 C
1934
11.5 C
+2.86 C
1935
8.8 C
+0.18 C
1936
9.2 C
+0.51 C
1937
8.6 C
-0.04 C
1938
9.5 C
+0.90 C
1939
9.6 C
+0.98 C
1940
10.2 C
+1.58 C
1941
9.4 C
+0.75 C
1942
7.9 C
-0.70 C
1943
9.1 C
+0.42 C
1944
7.8 C
-0.83 C
1945
9.0 C
+0.36 C
1946
9.1 C
+0.42 C
1947
8.9 C
+0.23 C
1948
8.1 C
-0.56 C
1949
7.9 C
-0.79 C
1950
8.5 C
-0.12 C
1951
7.9 C
-0.72 C
1952
8.4 C
-0.25 C
1953
9.8 C
+1.19 C
1954
9.7 C
+1.04 C
1955
7.9 C
-0.79 C
1957
8.8 C
+0.19 C
1958
10.1 C
+1.42 C
1959
9.2 C
+0.59 C
1960
8.8 C
+0.19 C
1961
9.7 C
+1.02 C
1981
9.5 C
+0.85 C
1983
8.8 C
+0.14 C
1985
5.9 C
-2.79 C
1988
8.8 C
+0.17 C
1989
7.9 C
-0.73 C
1990
8.5 C
-0.13 C
1992
9.1 C
+0.41 C
1993
6.5 C
-2.18 C
1994
8.8 C
+0.13 C
1995
8.8 C
+0.11 C
1996
8.2 C
-0.40 C
1997
8.5 C
-0.13 C
The fitted trend in annual mean temperature here over 1907 to 1997 is -0.02 C (-0.11 to 0.07) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.04 F (-0.21 to 0.12) per decade. The slope is a straight line fitted to 61 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Rupert 3 WSW
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.02 C (-0.11 to 0.07) per decade
-0.04 F (-0.21 to 0.12) per decade
1907 to 1997
61
Not clearly different from zero
Mean daily maximum
-0.08 C (-0.17 to 0.02) per decade
-0.14 F (-0.31 to 0.04) per decade
1907 to 1997
61
Not clearly different from zero
Mean daily minimum
0.03 C (-0.07 to 0.13) per decade
0.1 F (-0.1 to 0.2) per decade
1907 to 1997
61
Not clearly different from zero
A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.
Extremes by Year
1906 to 2026
Yearly extremes at Rupert 3 WSW: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.6 C (105.1 F)
1933
37.2 C (99.0 F)
84
Coldest night (TNn)
-36.7 C (-34.1 F)
1922
-23.9 C (-11.0 F)
84
Wettest day (Rx1day)
64.8 mm (2.6 in)
1907
19.6 mm (0.8 in)
85
Wettest five days (Rx5day)
74.4 mm (2.9 in)
1908
30.5 mm (1.2 in)
85
Longest dry spell (CDD)
133 days
1935
44 days
85
Hottest day (TXx)
The hottest day of the year at Rupert 3 WSW, 1906 to 2026. The record is 40.6 C (105.1 F) in 1933, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Rupert 3 WSW by year
Year
Hottest day (TXx)
1906
18.3 C (64.9 F)
1907
36.7 C (98.1 F)
1908
37.8 C (100.0 F)
1909
37.2 C (99.0 F)
1910
37.2 C (99.0 F)
1911
34.4 C (93.9 F)
1912
35.0 C (95.0 F)
1913
36.1 C (97.0 F)
1914
35.0 C (95.0 F)
1915
36.7 C (98.1 F)
1916
36.7 C (98.1 F)
1917
38.9 C (102.0 F)
1918
38.3 C (100.9 F)
1919
37.8 C (100.0 F)
1920
36.7 C (98.1 F)
1921
36.1 C (97.0 F)
1922
37.2 C (99.0 F)
1923
35.6 C (96.1 F)
1924
37.2 C (99.0 F)
1925
36.1 C (97.0 F)
1926
36.1 C (97.0 F)
1927
35.0 C (95.0 F)
1928
36.1 C (97.0 F)
1929
36.7 C (98.1 F)
1930
36.7 C (98.1 F)
1931
40.0 C (104.0 F)
1932
36.7 C (98.1 F)
1933
40.6 C (105.1 F)
1934
40.6 C (105.1 F)
1935
40.0 C (104.0 F)
1936
40.0 C (104.0 F)
1937
37.8 C (100.0 F)
1938
36.1 C (97.0 F)
1939
39.4 C (102.9 F)
1940
38.9 C (102.0 F)
1941
36.1 C (97.0 F)
1942
37.8 C (100.0 F)
1943
36.7 C (98.1 F)
1944
36.7 C (98.1 F)
1945
36.7 C (98.1 F)
1946
37.8 C (100.0 F)
1947
36.7 C (98.1 F)
1948
35.0 C (95.0 F)
1949
35.6 C (96.1 F)
1950
35.0 C (95.0 F)
1951
37.2 C (99.0 F)
1952
38.3 C (100.9 F)
1953
38.9 C (102.0 F)
1954
40.0 C (104.0 F)
1955
38.9 C (102.0 F)
1956
37.8 C (100.0 F)
1957
35.6 C (96.1 F)
1958
37.2 C (99.0 F)
1959
37.8 C (100.0 F)
1960
40.0 C (104.0 F)
1961
37.8 C (100.0 F)
1962
36.7 C (98.1 F)
1978
37.2 C (99.0 F)
1979
35.0 C (95.0 F)
1980
36.1 C (97.0 F)
1981
38.9 C (102.0 F)
1982
37.2 C (99.0 F)
1983
38.9 C (102.0 F)
1984
36.1 C (97.0 F)
1985
37.8 C (100.0 F)
1986
37.2 C (99.0 F)
1987
36.7 C (98.1 F)
1988
38.3 C (100.9 F)
1989
37.2 C (99.0 F)
1990
38.9 C (102.0 F)
1991
35.6 C (96.1 F)
1992
37.2 C (99.0 F)
1993
34.4 C (93.9 F)
1994
37.8 C (100.0 F)
1995
36.1 C (97.0 F)
1996
37.8 C (100.0 F)
1997
36.1 C (97.0 F)
1998
38.9 C (102.0 F)
1999
36.1 C (97.0 F)
2000
37.8 C (100.0 F)
2001
36.1 C (97.0 F)
2002
15.6 C (60.1 F)
2021
36.7 C (98.1 F)
2022
37.8 C (100.0 F)
2026
n/a
Coldest night (TNn)
The coldest night of the year at Rupert 3 WSW, 1906 to 2026. The record is -36.7 C (-34.1 F) in 1922, marked on the chart; the median year is -23.9 C (-11.0 F).
Coldest night (TNn) at Rupert 3 WSW by year
Year
Coldest night (TNn)
1906
-23.3 C (-9.9 F)
1907
-23.3 C (-9.9 F)
1908
-25.6 C (-14.1 F)
1909
-19.4 C (-2.9 F)
1910
-30.6 C (-23.1 F)
1911
-24.4 C (-11.9 F)
1912
-26.1 C (-15.0 F)
1913
-26.1 C (-15.0 F)
1914
-24.4 C (-11.9 F)
1915
-28.3 C (-18.9 F)
1916
-24.4 C (-11.9 F)
1917
-29.4 C (-20.9 F)
1918
-19.4 C (-2.9 F)
1919
-24.4 C (-11.9 F)
1920
-19.4 C (-2.9 F)
1921
-23.3 C (-9.9 F)
1922
-36.7 C (-34.1 F)
1923
-21.7 C (-7.1 F)
1924
-32.8 C (-27.0 F)
1925
-18.9 C (-2.0 F)
1926
-21.1 C (-6.0 F)
1927
-24.4 C (-11.9 F)
1928
-23.3 C (-9.9 F)
1929
-28.9 C (-20.0 F)
1930
-33.3 C (-27.9 F)
1931
-24.4 C (-11.9 F)
1932
-27.8 C (-18.0 F)
1933
-35.0 C (-31.0 F)
1934
-12.2 C (10.0 F)
1935
-23.3 C (-9.9 F)
1936
-22.2 C (-8.0 F)
1937
-36.1 C (-33.0 F)
1938
-15.6 C (3.9 F)
1939
-18.3 C (-0.9 F)
1940
-18.3 C (-0.9 F)
1941
-20.0 C (-4.0 F)
1942
-29.4 C (-20.9 F)
1943
-20.0 C (-4.0 F)
1944
-23.3 C (-9.9 F)
1945
-21.7 C (-7.1 F)
1946
-19.4 C (-2.9 F)
1947
-23.9 C (-11.0 F)
1948
-21.1 C (-6.0 F)
1949
-32.8 C (-27.0 F)
1950
-28.9 C (-20.0 F)
1951
-24.4 C (-11.9 F)
1952
-24.4 C (-11.9 F)
1953
-17.8 C (0.0 F)
1954
-20.6 C (-5.1 F)
1955
-23.9 C (-11.0 F)
1956
-27.8 C (-18.0 F)
1957
-26.1 C (-15.0 F)
1958
-16.7 C (1.9 F)
1959
-21.1 C (-6.0 F)
1960
-27.8 C (-18.0 F)
1961
-19.4 C (-2.9 F)
1962
-35.6 C (-32.1 F)
1978
-25.0 C (-13.0 F)
1979
-31.1 C (-24.0 F)
1980
-25.6 C (-14.1 F)
1981
-17.2 C (1.0 F)
1982
-30.0 C (-22.0 F)
1983
-27.8 C (-18.0 F)
1984
-30.0 C (-22.0 F)
1985
-32.2 C (-26.0 F)
1986
-18.3 C (-0.9 F)
1987
-24.4 C (-11.9 F)
1988
-24.4 C (-11.9 F)
1989
-26.7 C (-16.1 F)
1990
-31.7 C (-25.1 F)
1991
-21.7 C (-7.1 F)
1992
-23.9 C (-11.0 F)
1993
-23.3 C (-9.9 F)
1994
-21.1 C (-6.0 F)
1995
-16.7 C (1.9 F)
1996
-27.8 C (-18.0 F)
1997
-18.9 C (-2.0 F)
1998
-23.3 C (-9.9 F)
1999
-17.8 C (0.0 F)
2000
-16.1 C (3.0 F)
2001
-17.2 C (1.0 F)
2002
-17.8 C (0.0 F)
2021
-13.3 C (8.1 F)
2022
-21.7 C (-7.1 F)
2026
n/a
Wettest day (Rx1day)
The wettest day of the year at Rupert 3 WSW, 1906 to 2026. The record is 64.8 mm (2.6 in) in 1907, marked on the chart; the median year is 19.6 mm (0.8 in).
Wettest day (Rx1day) at Rupert 3 WSW by year
Year
Wettest day (Rx1day)
1906
10.7 mm (0.4 in)
1907
64.8 mm (2.6 in)
1908
23.4 mm (0.9 in)
1909
39.6 mm (1.6 in)
1910
11.7 mm (0.5 in)
1911
21.6 mm (0.9 in)
1912
26.4 mm (1.0 in)
1913
26.4 mm (1.0 in)
1914
23.4 mm (0.9 in)
1915
33.5 mm (1.3 in)
1916
39.1 mm (1.5 in)
1917
18.3 mm (0.7 in)
1918
20.3 mm (0.8 in)
1919
23.1 mm (0.9 in)
1920
25.4 mm (1.0 in)
1921
17.8 mm (0.7 in)
1922
31.0 mm (1.2 in)
1923
35.8 mm (1.4 in)
1924
16.8 mm (0.7 in)
1925
24.6 mm (1.0 in)
1926
12.7 mm (0.5 in)
1927
26.4 mm (1.0 in)
1928
23.6 mm (0.9 in)
1929
26.9 mm (1.1 in)
1930
25.9 mm (1.0 in)
1931
19.8 mm (0.8 in)
1932
27.9 mm (1.1 in)
1933
14.0 mm (0.6 in)
1934
14.7 mm (0.6 in)
1935
24.1 mm (0.9 in)
1936
24.4 mm (1.0 in)
1937
18.5 mm (0.7 in)
1938
12.7 mm (0.5 in)
1939
8.6 mm (0.34 in)
1940
19.8 mm (0.8 in)
1941
12.7 mm (0.5 in)
1942
18.8 mm (0.7 in)
1943
18.0 mm (0.7 in)
1944
46.5 mm (1.8 in)
1945
11.9 mm (0.5 in)
1946
24.9 mm (1.0 in)
1947
11.7 mm (0.5 in)
1948
12.7 mm (0.5 in)
1949
14.2 mm (0.6 in)
1950
29.5 mm (1.2 in)
1951
19.6 mm (0.8 in)
1952
14.7 mm (0.6 in)
1953
13.0 mm (0.5 in)
1954
16.5 mm (0.6 in)
1955
13.0 mm (0.5 in)
1956
16.3 mm (0.6 in)
1957
38.1 mm (1.5 in)
1958
17.5 mm (0.7 in)
1959
16.5 mm (0.6 in)
1960
14.5 mm (0.6 in)
1961
21.3 mm (0.8 in)
1962
12.2 mm (0.5 in)
1978
23.9 mm (0.9 in)
1979
22.9 mm (0.9 in)
1980
25.1 mm (1.0 in)
1981
23.1 mm (0.9 in)
1982
14.5 mm (0.6 in)
1983
23.6 mm (0.9 in)
1984
17.8 mm (0.7 in)
1985
13.7 mm (0.5 in)
1986
11.7 mm (0.5 in)
1987
18.0 mm (0.7 in)
1988
16.5 mm (0.6 in)
1989
26.4 mm (1.0 in)
1990
12.7 mm (0.5 in)
1991
38.1 mm (1.5 in)
1992
21.3 mm (0.8 in)
1993
18.3 mm (0.7 in)
1994
10.7 mm (0.4 in)
1995
20.8 mm (0.8 in)
1996
17.3 mm (0.7 in)
1997
21.3 mm (0.8 in)
1998
21.3 mm (0.8 in)
1999
24.1 mm (0.9 in)
2000
16.5 mm (0.6 in)
2001
7.6 mm (0.30 in)
2002
9.7 mm (0.38 in)
2021
18.5 mm (0.7 in)
2022
24.4 mm (1.0 in)
2026
12.3 mm (0.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Rupert 3 WSW, 1906 to 2026. The record is 74.4 mm (2.9 in) in 1908, marked on the chart; the median year is 30.5 mm (1.2 in).
Wettest five days (Rx5day) at Rupert 3 WSW by year
Year
Wettest five days (Rx5day)
1906
15.5 mm (0.6 in)
1907
69.1 mm (2.7 in)
1908
74.4 mm (2.9 in)
1909
63.3 mm (2.5 in)
1910
21.5 mm (0.8 in)
1911
34.6 mm (1.4 in)
1912
59.4 mm (2.3 in)
1913
49.3 mm (1.9 in)
1914
33.3 mm (1.3 in)
1915
48.0 mm (1.9 in)
1916
45.9 mm (1.8 in)
1917
34.5 mm (1.4 in)
1918
31.8 mm (1.3 in)
1919
28.0 mm (1.1 in)
1920
32.6 mm (1.3 in)
1921
31.7 mm (1.2 in)
1922
43.7 mm (1.7 in)
1923
50.5 mm (2.0 in)
1924
30.9 mm (1.2 in)
1925
31.0 mm (1.2 in)
1926
21.8 mm (0.9 in)
1927
41.4 mm (1.6 in)
1928
35.8 mm (1.4 in)
1929
26.9 mm (1.1 in)
1930
41.9 mm (1.6 in)
1931
29.5 mm (1.2 in)
1932
32.2 mm (1.3 in)
1933
19.6 mm (0.8 in)
1934
21.0 mm (0.8 in)
1935
35.3 mm (1.4 in)
1936
37.9 mm (1.5 in)
1937
27.6 mm (1.1 in)
1938
30.5 mm (1.2 in)
1939
13.9 mm (0.5 in)
1940
27.7 mm (1.1 in)
1941
16.5 mm (0.6 in)
1942
34.5 mm (1.4 in)
1943
33.7 mm (1.3 in)
1944
52.9 mm (2.1 in)
1945
21.6 mm (0.9 in)
1946
41.9 mm (1.6 in)
1947
21.9 mm (0.9 in)
1948
29.0 mm (1.1 in)
1949
25.1 mm (1.0 in)
1950
45.5 mm (1.8 in)
1951
30.1 mm (1.2 in)
1952
21.6 mm (0.9 in)
1953
24.0 mm (0.9 in)
1954
25.2 mm (1.0 in)
1955
18.0 mm (0.7 in)
1956
31.8 mm (1.3 in)
1957
43.2 mm (1.7 in)
1958
24.8 mm (1.0 in)
1959
19.3 mm (0.8 in)
1960
24.1 mm (0.9 in)
1961
26.7 mm (1.1 in)
1962
18.1 mm (0.7 in)
1978
29.3 mm (1.2 in)
1979
34.4 mm (1.4 in)
1980
60.0 mm (2.4 in)
1981
32.7 mm (1.3 in)
1982
30.0 mm (1.2 in)
1983
36.1 mm (1.4 in)
1984
21.6 mm (0.9 in)
1985
20.1 mm (0.8 in)
1986
38.8 mm (1.5 in)
1987
28.2 mm (1.1 in)
1988
26.2 mm (1.0 in)
1989
30.4 mm (1.2 in)
1990
25.4 mm (1.0 in)
1991
38.9 mm (1.5 in)
1992
25.9 mm (1.0 in)
1993
36.6 mm (1.4 in)
1994
21.9 mm (0.9 in)
1995
36.9 mm (1.5 in)
1996
27.7 mm (1.1 in)
1997
24.1 mm (0.9 in)
1998
57.4 mm (2.3 in)
1999
42.2 mm (1.7 in)
2000
18.3 mm (0.7 in)
2001
8.6 mm (0.34 in)
2002
14.5 mm (0.6 in)
2021
33.5 mm (1.3 in)
2022
31.0 mm (1.2 in)
2026
14.8 mm (0.6 in)
Longest dry spell (CDD)
The longest dry spell of the year at Rupert 3 WSW, 1906 to 2026. The record is 133 days in 1935, marked on the chart; the median year is 44 days.
Longest dry spell (CDD) at Rupert 3 WSW by year
Year
Longest dry spell (CDD)
1906
5 days
1907
31 days
1908
33 days
1909
41 days
1910
65 days
1911
49 days
1912
28 days
1913
33 days
1914
44 days
1915
50 days
1916
67 days
1917
50 days
1918
24 days
1919
61 days
1920
45 days
1921
54 days
1922
43 days
1923
26 days
1924
41 days
1925
28 days
1926
109 days
1927
44 days
1928
99 days
1929
39 days
1930
34 days
1931
50 days
1932
38 days
1933
46 days
1934
35 days
1935
133 days
1936
49 days
1937
30 days
1938
37 days
1939
69 days
1940
90 days
1941
40 days
1942
87 days
1943
69 days
1944
50 days
1945
39 days
1946
36 days
1947
36 days
1948
77 days
1949
51 days
1950
59 days
1951
45 days
1952
116 days
1953
85 days
1954
88 days
1955
31 days
1956
61 days
1957
47 days
1958
41 days
1959
68 days
1960
50 days
1961
31 days
1962
48 days
1978
42 days
1979
26 days
1980
40 days
1981
72 days
1982
21 days
1983
36 days
1984
21 days
1985
61 days
1986
30 days
1987
69 days
1988
82 days
1989
35 days
1990
64 days
1991
61 days
1992
53 days
1993
47 days
1994
44 days
1995
52 days
1996
59 days
1997
27 days
1998
27 days
1999
78 days
2000
44 days
2001
33 days
2002
19 days
2021
22 days
2022
26 days
2026
9 days
Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.
Frost Dates and Growing Season
61 years with a frost
Across 61 years with a frost, the median last spring frost at Rupert 3 WSW falls on 17 May and the median first autumn frost on 21 September, which leaves a median of 129 days between them.
In 1943 to 1997 the median growing season was 135 days. That is 8 days more than in 1907 to 1941.
Fitted over all years, the growing season changes by +1.2 days per decade at this station.
Frost dates and growing season at Rupert 3 WSW
Measure
Median, all years
Earliest period (1907 to 1941)
Recent period (1943 to 1997)
Recent against earliest
Fitted trend
Last spring frost
17 May
21 May
13 May
8 days earlier
-1.0 days per decade
First autumn frost
21 September
21 September
21 September
no change
+0.3 days per decade
Growing days
129 days
127 days
135 days
8 days more
+1.2 days per decade
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Rainfall Return Levels
72 years, 1907 to 1999
A day with at least 19.5 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 55.3 mm (2.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Rupert 3 WSW: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
19.5 mm (0.8 in)
5 years
27.3 mm (1.1 in)
10 years
33.1 mm (1.3 in)
25 years
41.2 mm (1.6 in)
50 years
48.0 mm (1.9 in)
100 years
55.3 mm (2.2 in)
Longer than the 72 years of record
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 72 years of values from 1907 to 1999.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 64.8 mm (2.6 in) in 1907; 46.5 mm (1.8 in) in 1944; 39.6 mm (1.6 in) in 1909.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Download the Data
Data for Rupert 3 WSW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Rupert 3 WSW threshold days by year: CSV or JSON. Field meanings are on the data page.
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-13 (13 October 2026). Records are computed by this site and are not official.